With clasical music like symphonies Roon shows a few little blocks with the text part 1 of 4 or 2 of 4 depending the music. But in version 1.3 it is showing 1 block to much. Text 1 of 4 but it show 5 blocks instead of 4 blocks. See image.
It is not a big problem, it is just a little sloppy.